Central-pivot gun.



E. MUI LER.

CENTRAL PIVOT GUN.

APPLICATION FILED JUNE I7. 1915.

1 ,1 74,5 1 7 Patented Mar. 7, 1916.

2 SHEETSSHEET I.

g INVENTCI P\ Iz."-

'ATI'URNEY E. MULLER.

CENTRAL PIVOT GUN. APPLICATION FILED JUNE 1?, 19m.

L 1 1 61,51") 1 7. Patented Mar. 7, 1916.

2 SHEETS -SHEE1' 2- W -ATrn N EY central pivot gun EMIL MlILLER, OF- DUSSELDORF; GERMANY.

CENTRAL-PIV 0T GUN.

lift-Laid? Specification of Letters Patent.

Patented Mar. '7, 1916.

Application filed June 17, 1915. Serial No. 34,673.

To all whom it may concern lie it known that I. Run. Miinnna, engineer. a subject of the German Emperor. and resident of 27 Jordanstrasse. Dusseldorf. (lei-many. have invented certain new and useful Improvements in Central-Pivot Guns; and I do hereby declare the following to be a full. clear. and eXact description of the invention. such as will enable others skilled in the art to which it upper: tains to make and use the same.

For firing with guns at air ships and flying machines it is necessary to be able to rotate the gun in horizontal direction within a large range. In order to obtain such a large horizontal range of firing with wheel carriages it has been proposed to mount central pivot guns on wheel carriages. In such arrangement it is necessary that the wheel carriage when limbered up has a suiticicntly high distance from the ground so that it will not hinder the carriage during transport. In consequence thereof the carriage has also a relatively great distance from the ground when limbered down and in order to stiffen the gun against firing it is necessary to arrange largely extended supports on the sides of the carriage, which moreover must have a great length. Further if the gun carriage is in a high distance above the'ground the gun cannot be operated by men standing on the ground and therefore it is necessary to arrange a platform on the carriage whereby of course the weight of the whole gun is much enlarged.

The present invention has for its object to avoid the said disadvantages and for this purpose the gun wheel carriage is provided with means for lowering and lifting the gun carriage so that it will be possible to lower the gun. carriage for firing and to lift it for transport.

In the accompanying drawings an embodiment of the invention is represented.

Figure 1 is a side elevation of a central pivot gun having a wheel carriage according to the present invention. this figure showing the position for firing. Fig. 2 1s a. plan view. Fig. 3 is a side elevation of the gun showing the wheel carriage in its lifting position. Fig. at 's a side elevation showing the gun with the wheel carriage lifted and limbered up.

()n the wheel carriage a is mounted the b in such. a manner that it can be tilted toward the wheel axle (I. For this purpose the base of the central pivot gun is hinged at Z to the wheel carriage (1,. The tilted position of the central pivotgun is shown in Fig. 3 by broken lines and in Fig. t by full lines. Arms 0 are pivoted with their lower ends to the gun carriage (I, and embrace freely the wheel /a: le (Z. Pinions c are arranged on the wheel axb and engaged by toothed segments f consisting of one piece with the side walls of the carriage. The wheel axle cl is'funther provided with a hand crank g. It will be seen that by rotating the hand crank g the gun carriage a may be lowered or lifted by means of the gear a, f. In the lower position the arms 0 are firmly connected with the gun carriage a by a bolt 2' (Fig. 1). In the lifted position the connection is effected by a bolt is (Fig. 3). Struts k may be provided on the sides of the gun carriage so as to enlarge the stability of the whole gun. As it will be seen from Fig. 1 the carriage u. when lowered rests fully on the ground so that the gun can be operated by men standing on the ground.

For the purpose of transport the gun carriage is lifted as shown by Fig. 3 whereupon the central pivot gun I) is tilted toward the wheel axle and then the gun carriage a is limbered up in the usual manner as shown by Fig. i.

Having thus described my invention what I claim is:

1. In av central pivot gun having a Wheel carriage the combination of means for tilting the gun toward the wheel axle and a gear for lowering and lifting the gun carriage. said gear consisting of a member arranged on the wheel axle and of a second member connected with the carriage.

2. In a central pivot gun having a wheel carriage the combination of means for tilting the gun toward the wheel axle and a gear for lowering and lifting the gun carriage. said gear consisting of a pinion arranged on the segment connected with the carriage.

3. In a central pivot gun having a wheel carriage the combination of means for tilt ing the gun toward the Wheel axle, a gear for lowering and lifting the gun carriage. said gear consisting of member arranged on the wheel axle and of a second member connected with the carriage, arms pivoted with one point at the carriage and freely wheel axle and of a toothed embracing -the wheel axle andj'means for for lowering and lifting the gun carriage,

saidgear consisting of a member arranged on the wheel. axle and of a second member connected with the carnage, arms pivoted with one point at the carriage and freely embracing the Wheel axle and removable means for connecting said arms at other points with the carriage 1n its lowered and its lifted position.

In testimony whereof, I have signed this specification in the presence of two snb- I scribing Witnesses.

EMIL MULLER. 1,. s.]

Witnesses:

HELEN Nwai, ALBERT NUFER. 

